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. 2015 Dec 27;67(5):1411–1420. doi: 10.1093/jxb/erv541

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3. — Modification of root architecture by experimental variation of gravitropic bending. (A) Circular growth of a root growing on a clinostat with a speed of 360° per 6 d during 5–10 daig (white arrows) and photographed after a further 2 d on the clinostat. Exceptionally inwardly orientated LRs at indentions are marked (red arrows). In addition, there are three degenerated LRs without obvious indentions. (B–I) Periodic gravitropic bending of roots rotated by 90° back and forth in the vertical orientation during 5–10 daig at indicated intervals.